Sewing machine construction



March 8, 1955 E. D. was 2,703,543

SEWING MACHINE CONSTRUCTION Filed Feb. 6, 195;)

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. INVENTOR.

MMA 1D. NEEDS United States Patent SEWING MACHINE CONSTRUCTION Emma D. Needs. Oblong, Ill.

Application February 6, 1953, Serial No. 335,507

1 Claim. (Cl. 112260) This invention relates to sewing machines and more particularly to a sewing machine especially constructed for mending trouser legs and garment sleeves.

It is among the objects of the invention to provide an improved sewing machine having an opening or slot therein adjacent to and extending under the throat plate and bobbin of the machine so that a trouser leg or sleeve can be disposed around the portion of the machine carrying the throat plate and bobbin and under the presser foot of the machine to dispose only one thickness of the garment portion between the presser foot and throat plate of the machine; which includes a housing enclosing the bobbin and associated mechanism of the machine and protecting such mechanism from engagement with the portions of garments disposed in the opening below the mechanism; which does not interfere in any way with the use of the sewing machine for purposes other than mending; and which is inexpensive to provide and fully effective for its intended purpose.

Other objects and advantages will become apparent from a consideration of the following description and the appended claim in conjunction with the accompanying drawing, wherein:

Figure l is a fragmentary perspective view of a sewing machine constructed in accordance with the inven tion; 1

Figure 2 is a fragmentary cross sectional view on the line 2--2 of Figure 1; and

Figure 3 is a fragmentary cross sectional view on the line 3--3 of Figure 2.

With continued reference to the drawing, the sewing machine assembly illustrated in Figure 1 includes a sewing machine cabinet having a top 11 and a leaf 12 hinged at one end to one end of the cabinet top 11 to extend horizontally outwardly from the cabinet top, and a sewing machine, generally indicated at 14, including a flat bed plate 15 mounted in the cabinet top 11 and a frame 16 of substantially right angular shape disposed above said bed plate 15 and secured at one end to the bed plate at one end of the latter and having its other end spaced from the bed plate at the other end of the bed plate. A throat plate 17 is mounted in an opening in the bed plate 15 at the end of the bed plate remote from that to which the frame 16 is connected and the throat plate is provided with a needle throat 18. A presser foot 19 is slidably mounted in the frame 16 immediately above the throat plate 17 and extends from the frame toward the throat plate in alignment with the needle throat 18 and a needle shaft 20 also extends from the frame and carries a needle 21 aligned with the needle throat 18 in the throat plate.

A bobbin 22 is disposed below the throat plate 17 adjacent the needle throat 18 and this bobbin is carried and driven by associated mechanism 23 journaled on the underside of the bed plate 15 of the machine.

As the construction of sewing machines is well known to the art, a more detailed illustration and description of the machine itself is considered unnecessary for the purposes of the present disclosure.

The present invention involves the provision of a U- shaped slot or opening 25 in the portion of the cabinet top 11 adjacent the end of the bed plate in which the throat plate 17 is mounted and in the bed plate 15. This opening has a bight or intermediate portion 26 extending across the outer end of the throat plate 17 and partly across the corresponding end of the bed plate 15 and has 2,703,543 Patented Mar. 8, 1955 legs 27 and 28 disposed perpendicular to the intermediate portion 26 one at each end of the intermediate portion and extending longitudinally of the bed plate 15 at locations spaced substantially equal distances from the respectively opposite longitudinal sides of the throat plate 17. The legs 27 and 28 of the opening are somewhat longer than the throat plate 17 and extend through a portion only of the length of the bed plate 15, as illustrated in Figure 1.

The U-shaped opening 25 permits the portion of the bed plate 15 between the legs 27 and 28 of the opening to receive an end of a garment part, such as a trouser leg or garment sleeve so that the garment part extends around this portion of the bed plate with only a single thickness of the garment part disposed between the throat plate 17 and the presser foot 19 of the machine. This eliminates the necessity of ripping out portions of the seams of such garment parts in order to be able to dispose a single thickness of such a garment part between the throat plate and presser foot of the machine for mending the garment part.

In order to preclude the possibility of garment portions disposed below the throat plate 17 and mechanism 23 becoming engaged or entangled in the mechanism during the operation of the machine, a pan-shaped hollow housing 30 is disposed below the bed plate 15 with its open side against the underside of the bed plate and is secured to the bed plate between the legs 27 and 28 of the opening 25 and along the end portion of the bed plate adjacent the intermediate portion 26 of the opening. This housing 30 has its end adjacent the intermediate portion 26 of the opening 25 closed and smoothly rounded, as indicated at 31, so that the ends of garment legs or sleeves can be easily pulled past this end of the housing and the edge of the cabinet top 11 adjacent the intermediate portion 26 of the opening is also preferably concavely rounded, as indicated at 32, to assist in passing the ends of garment legs or sleeves through this portion of the opening and under the housing 30.

In using the sewing machine modified as described above, the end of a garment leg or sleeve is placed around the end portion of the machine bed plate 15 between the slot legs 27 and 28 and around the closed end portion of the housing and the garment sleeve or leg is then pulled onto the portion of the bed plate between the slot legs until the area to be mended is disposed over the throat plate 17 of the machine.

The presser foot 19 is then lowered onto the portion of the garment overlying the throat plate and the damaged area of the garment repaired by machine darning or by sewing a patch thereto.

The invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiment is, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claim rather than by the foregoing description, and all changes which come Within the meaning and range of equivalency of the claim are, therefore, intended to be embraced therein.

What is claimed is:

In a sewing machine, a bed plate having parallel, longitudinal slots opening upon one end edge of the bed plate; a bobbin housing having one end wall extending trans versely between the slots at one end of the slots in substantial registration with said end edge of the bed plate, said end wall being transversely rounded to merge smoothly into the bottom wall of the housing; and a cabinet having one edge abutting against said end edge of the bed plate, the end edge of the cabinet having a recess defining a slot between the end edges of the bed plate and cabinet, the ends of said recess communicating with said ends of the first-named slots, one wall of said recess being transversely concaved and facing the rounded end Wall of the bobbin housing.

References Cited in the file of this patent UNITED STATES PATENTS 884,482 Gould Apr. 14, 1908 

